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dc.contributor.author
García, Alejandro Adrián
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dc.contributor.author
Roht, Yanina Lucrecia
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dc.contributor.author
Gauthier, G.
dc.contributor.author
Salin, D.
dc.contributor.author
Drazer, G.
dc.contributor.author
Hulin, J. P.
dc.contributor.author
Ippolito, Irene Paula
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dc.date.available
2023-12-15T15:46:13Z
dc.date.issued
2023-03
dc.identifier.citation
García, Alejandro Adrián; Roht, Yanina Lucrecia; Gauthier, G.; Salin, D.; Drazer, G.; et al.; Unstable oscillatory flow of non-Brownian suspensions in Hele-Shaw cells; American Physical Society; Physical Review Fluids; 8; 3; 3-2023; 1-17
dc.identifier.uri
http://hdl.handle.net/11336/220445
dc.description.abstract
The behavior of neutrally buoyant, non-Brownian suspensions subject to square-wave flow oscillations in Hele-Shaw cells is investigated. The velocity field across the cell gap is determined by tracking particles in a plane parallel to the main flow. Initially, the velocity field of the particles is parallel to the main flow and its profile across the gap is blunted due to a higher volume fraction of particles in the gap center; this has been confirmed by direct estimations of the particle fraction and likely results from shear-induced migration. Velocity fluctuations, both along and transverse to the flow direction, agree reasonably well with previous studies. At longer times, the suspension develops an instability characterized by the growth of a transverse velocity component that is periodic along the main flow direction and in time. No influence of inertia on the characteristic onset time of this instability is observed for Reynolds numbers varying over four decades below Re=0.4. The inverse of the onset time increases linearly with the amplitude of the oscillatory flow. The dependence of the onset time on the particle volume fraction and the gap thickness is consistent with the characteristic time for particle migration across the gap due to shear-induced diffusion.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
SUSPENSION
dc.subject
INSTABILITY
dc.subject
OSCILATING FLOW
dc.subject.classification
Física de los Fluidos y Plasma
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dc.subject.classification
Ciencias Físicas
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dc.subject.classification
CIENCIAS NATURALES Y EXACTAS
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dc.title
Unstable oscillatory flow of non-Brownian suspensions in Hele-Shaw cells
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2023-12-13T12:24:29Z
dc.identifier.eissn
2469-990X
dc.journal.volume
8
dc.journal.number
3
dc.journal.pagination
1-17
dc.journal.pais
Estados Unidos
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dc.description.fil
Fil: García, Alejandro Adrián. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Universite Paris-saclay (universite Paris-saclay);
dc.description.fil
Fil: Roht, Yanina Lucrecia. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
dc.description.fil
Fil: Gauthier, G.. Universite Paris-saclay (universite Paris-saclay);
dc.description.fil
Fil: Salin, D.. Universite Paris-saclay (universite Paris-saclay);
dc.description.fil
Fil: Drazer, G.. State University of New Jersey; Estados Unidos
dc.description.fil
Fil: Hulin, J. P.. Universite Paris-saclay (universite Paris-saclay);
dc.description.fil
Fil: Ippolito, Irene Paula. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina
dc.journal.title
Physical Review Fluids
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://journals.aps.org/prfluids/abstract/10.1103/PhysRevFluids.8.034301
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevFluids.8.034301
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